Added hardcoded default values for YAML values.

source/abstract/Body.cpp

@@ -12,6 +12,7 @@
 #include <Thor/Vectors.hpp>
 
 const String Body::KEY_SIZE = "size";
+const Vector2i Body::DEFAULT_SIZE = Vector2i(50, 50);
 
 /**
  * Initializes Box2D body.
@@ -21,7 +22,7 @@ const String Body::KEY_SIZE = "size";
 Body::Body(const PhysicalData& data, const Yaml& config, const Vector2i& pSize) :
 		mDelete(false) {
 	Vector2i size = (pSize == Vector2i())
-		? config.get<Vector2i>(KEY_SIZE)
+		? config.get(KEY_SIZE, DEFAULT_SIZE)
 		: pSize;
 	assert(size != Vector2i());
 

source/abstract/Body.h

@@ -92,6 +92,7 @@ public:
 // Public variables.
 public:
 	static const String KEY_SIZE;
+	static const Vector2i DEFAULT_SIZE;
 
 // Protected functions.
 protected:

source/abstract/Character.cpp

@@ -16,7 +16,9 @@
 #include "../util/Log.h"
 
 const String Character::KEY_HEALTH = "health";
+const int Character::DEFAULT_HEALTH = 100;
 const String Character::KEY_SPEED = "speed";
+const float Character::DEFAULT_SPEED = 100;
 const float Character::POINT_REACHED_DISTANCE = 1.0f;
 std::vector<Character*> Character::mCharacterInstances = std::vector<Character*>();
 
@@ -26,9 +28,9 @@ std::vector<Character*> Character::mCharacterInstances = std::vector<Character*>
 Character::Character(const Instances& instances, const String& texturePath,
 	const PhysicalData& data, const Yaml& config) :
 		Sprite(config, data),
-		mMaxHealth(config.get<int>(KEY_HEALTH)),
+		mMaxHealth(config.get(KEY_HEALTH, DEFAULT_HEALTH)),
 		mCurrentHealth(mMaxHealth),
-		mMovementSpeed(config.get<float>(KEY_SPEED)),
+		mMovementSpeed(config.get(KEY_SPEED, DEFAULT_SPEED)),
 		mWeapon(instances, *this, Yaml("weapon.yaml")),
 		mInstances(instances),
 		mStartPathfinding(false) {

source/abstract/Character.h

@@ -47,7 +47,9 @@ protected:
 // Private variables.
 private:
 	static const String KEY_HEALTH;
+	static const int DEFAULT_HEALTH;
 	static const String KEY_SPEED;
+	static const float DEFAULT_SPEED;
 	/// The distance to a point where it is considered reached.
 	static const float POINT_REACHED_DISTANCE;
 

source/abstract/Sprite.cpp

@@ -9,8 +9,10 @@
 
 #include "../util/Loader.h"
 #include "../util/ResourceManager.h"
+#include "../util/Log.h"
 
 const String Sprite::KEY_TEXTURE = "texture";
+const String Sprite::DEFAULT_TEXTURE = "";
 
 /**
  * Loads sprite from ResourceManager, sets world position.
@@ -18,10 +20,14 @@ const String Sprite::KEY_TEXTURE = "texture";
  * @param texturePath Relative path to the texture file in the resource folder.
  */
 Sprite::Sprite(const Yaml& config, const PhysicalData& data, const Vector2i& size) :
-		Body(data, config, size),
-		mTexture(ResourceManager::i().acquire(Loader::i()
-				.fromFile<sf::Texture>(config.get<String>(KEY_TEXTURE)))),
-		mSize(Vector2i(getSize())) {
+		Body(data, config, size),
+		mSize(Vector2i(getSize())) {
+	String texture = config.get(KEY_TEXTURE, DEFAULT_TEXTURE);
+	if (texture == "") {
+		LOG_E("Failed to read texture from YAML file " << config.getFilename());
+	}
+	mTexture = ResourceManager::i().acquire(Loader::i()
+			.fromFile<sf::Texture>(texture));
 }
 
 /**

source/abstract/Sprite.h

@@ -39,6 +39,7 @@ protected:
 // Private variables.
 private:
 	static const String KEY_TEXTURE;
+	static const String DEFAULT_TEXTURE;
 
 	std::shared_ptr<sf::Texture> mTexture;
 	Vector2i mSize;

source/effects/Bullet.cpp

@@ -12,7 +12,9 @@
 #include "../util/ResourceManager.h"
 
 const String Bullet::KEY_DAMAGE = "damage";
+const int Bullet::DEFAULT_DAMAGE = 10;
 const String Bullet::KEY_SPEED = "speed";
+const float Bullet::DEFAULT_SPEED = 500;
 
 /**
  * Places a bullet in the world.
@@ -26,8 +28,8 @@ Bullet::Bullet(const Vector2f& position, b2World& world, Body& shooter, float di
 		Particle(config, PhysicalData(position, world, CATEGORY_PARTICLE, CATEGORY_PARTICLE,
 				true, true, true)),
 		mShooter(shooter),
-		mDamage(config.get<int>(KEY_DAMAGE)),
-		mSpeed(config.get<int>(KEY_SPEED)) {
+		mDamage(config.get(KEY_DAMAGE, DEFAULT_DAMAGE)),
+		mSpeed(config.get(KEY_SPEED, DEFAULT_SPEED)) {
 	setSpeed(angle(direction), mSpeed);
 	setAngle(direction);
 }

source/effects/Bullet.h

@@ -30,7 +30,9 @@ public:
 // Private variables.
 private:
 	static const String KEY_DAMAGE;
+	static const int DEFAULT_DAMAGE;
 	static const String KEY_SPEED;
+	static const float DEFAULT_SPEED;
 
 	Body& mShooter;
 	const int mDamage;

source/items/Weapon.cpp

@@ -15,16 +15,18 @@
 #include "../effects/Bullet.h"
 
 const String Weapon::KEY_BULLET = "bullet";
+const String Weapon::DEFAULT_BULLET = "bullet.yaml";
 const String Weapon::KEY_INTERVAL = "interval";
+const int Weapon::DEFAULT_INTERVAL = 250;
 
 Weapon::Weapon(const Instances& instances, Body& holder, const Yaml& config) :
 		Emitter(instances.collection),
 		mHolder(holder),
 		mWorld(instances.world),
-		mBullet(config.get<String>(KEY_BULLET)),
-		mTimer(sf::milliseconds(config.get<int>(KEY_INTERVAL))) {
+		mBullet(config.get(KEY_BULLET, DEFAULT_BULLET)),
+		mTimer(sf::milliseconds(config.get(KEY_INTERVAL, DEFAULT_INTERVAL))) {
 	Yaml bullet(mBullet);
-	Vector2i bulletSize = bullet.get<Vector2i>(Body::KEY_SIZE);
+	Vector2i bulletSize = bullet.get(Body::KEY_SIZE, Body::DEFAULT_SIZE);
 	mOffset = Vector2f(0, std::max(mHolder.getSize().x, mHolder.getSize().y) / 2 +
 			b2_linearSlop +
 			std::max(bulletSize.x, bulletSize.y) / 2);

source/items/Weapon.h

@@ -41,7 +41,9 @@ protected:
 // Private variables.
 private:
 	static const String KEY_BULLET;
+	static const String DEFAULT_BULLET;
 	static const String KEY_INTERVAL;
+	static const int DEFAULT_INTERVAL;
 
 	Body& mHolder;
 	b2World& mWorld;

source/util/Yaml.cpp

@@ -16,7 +16,8 @@ String Yaml::mFolder = "";
  * set in setFolder().
  */
 Yaml::Yaml(const String& filename) :
-		mFile(mFolder+filename) {
+		mFilename(mFolder+filename),
+		mFile(mFilename) {
 	if (mFile.fail()) {
 		LOG_W("Failed to open YAML file: " << mFolder << filename);
 	}
@@ -28,6 +29,14 @@ Yaml::~Yaml() {
 	mFile.close();
 }
 
+/**
+ * Return path and name of the file opened in this object.
+ */
+String
+Yaml::getFilename() const {
+	return mFilename;
+}
+
 /**
  * Sets the folder where YAML files are placed. Is added in front of each file name. Allows
  * shorter strings as this does not have to be added everywhere.

source/util/Yaml.h

@@ -24,14 +24,18 @@ public:
 	Yaml(const String& filename);
 	~Yaml();
 
+	String getFilename() const;
+
 	static void setFolder(const String& folder);
 
 	template <typename T>
-	T get(const String& key) const;
+	T get(const String& key, const T& defaultValue) const;
 
 // Private variables.
 private:
 	static String mFolder;
+
+	String mFilename;
 	std::ifstream mFile;
 	YAML::Node mNode;
 };
@@ -59,10 +63,15 @@ namespace {
  * @return The value of the specified key.
  */
 template <typename T>
-T Yaml::get(const String& key) const {
-	T tmp;
-	mNode[key] >> tmp;
-	return tmp;
+T Yaml::get(const String& key, const T& defaultValue) const {
+	if (const YAML::Node* node = mNode.FindValue(key)) {
+		T value;
+		*node >> value;
+		return value;
+	}
+	else {
+		return defaultValue;
+	}
 };
 
 #endif /* DG_YAML_H_ */